Solar energy and electric vehicles: affordable for stopping climate change?
Solar panels Climate Change Enegry efficiency

Solar energy and electric vehicles: affordable for stopping climate change?

Prof Dr Ilan Kelman
Prof Dr Ilan Kelman

In 10 seconds? A new analysis for Japan calculates that installing solar panels on roofs and using electric vehicles can save money and mitigate human-caused climate change. Making these changes for residential properties produces better results than for commercial properties.

What are the numbers? By 2025, the authors show, about 15-25% of energy costs can be saved along with 60-80% of carbon dioxide emissions. 2040 would see reductions of 35-45% in costs and 70-90% in carbon dioxide emissions. The higher values are for buildings in a residential district of the town of Shinchi while the lower values are for a commercial district in Kyoto. Payback periods for investment in the systems started at 10-15 years in 2020, dropping to as low as three years by 2040 as the cost of installation declines.

Get unlimited access to our 3-min Digests and other premium features!

Choose your plan.

Sparrow Insiders

$0 (Limited Offer)
  • Receive our daily Digest in your inbox
  • Created & reviewed by real scientists
  • Preview 380+ Digests in our library
  • Upgrade for unlimited learning
  • Unsubscribe anytime
  • Subject to availability
Join our first 25k subscribers for free! Signup Progress Bar Subscribe now for free

Sparrow Unlimited

$19 / month
  • Talk with our scientists and ask them anything
  • Access 380+ summaries anywhere, anytime
  • Listen to our premium podcast
  • Weekly newsletter of the top 5 scientific findings
  • Daily updates with new content
  • Support independent science publishing
  • No advertisement
  • Cancel anytime
Learn more Subscribe now

Sparrow Unlimited

$99 / year
  • One easy payment - save 56%
  • Talk with our scientists and ask them anything
  • Access 380+ summaries anywhere, anytime
  • Listen to our premium podcast
  • Weekly newsletter of the top 5 scientific findings
  • Daily updates with new content
  • Support independent science publishing
  • No advertisement
  • Cancel anytime
Learn more Subscribe now